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What is Black Tea?

Black tea is one of the world’s most popular and widely consumed types of tea, recognized for its bold flavor, dark color, and invigorating qualities. It is made from the leaves of the Camellia sinensis plant and is distinct from other teas due to its full oxidation process, which gives the leaves their characteristic dark brown to black color and produces a hearty, sometimes astringent taste.

What is Black Tea?

Black tea is a fully oxidized tea made from the leaves of the Camellia sinensis plant. Two main varieties are used in its production: Camellia sinensis var. sinensis, which is native to China and has smaller leaves, and Camellia sinensis var. assamica, which is native to India and characterized by larger leaves. The oxidation process is what sets black tea apart from green, white, or oolong teas, resulting in a rich and robust, sometimes malty or smoky flavor profile.

Why is Black Tea called Black Tea?

The name "black tea" comes from the color of the oxidized leaves. In China, however, it’s often called “red tea” (hong cha) because of the reddish color of its brewed liquor. The Western term “black tea” refers to the dark appearance of the dry leaves after full oxidation.

History of Black Tea

Black tea originated in China during the late Ming and early Qing dynasties. Its creation is linked to an accidental over-oxidation of tea leaves, which led to the development of darker teas like Lapsang Souchong. Black tea became highly prized in Europe for its flavor and long shelf life, leading to its widespread cultivation in India and Sri Lanka during British colonial times. Today, major producers include China, India, Sri Lanka, and Africa.

Black tea today

In today’s market, “broken leaf” black tea accounts for over 90% of all tea sold in the US, the majority of which is enjoyed as iced tea. Also, with the invention of the teabag at the turn of the 20th century, black tea quickly became a household staple and continues to be a popular favorite in the home today. So much so that it’s almost a wonder to the Western world that black tea was ever enjoyed outside of a paper bag with a string attached to it!

Nowadays, with the resurgence of the Chinese economy and the growing wealth of tea knowledge surrounding us, we are once again introducing our palates to the many wonders of black tea and the many dynamic taste profiles it offers. The major production of black tea today stems from India, China, Sri Lanka, and Africa.

How is black tea made?

The production of black tea involves several key steps:

  1. Withering: Freshly picked leaves are spread out to reduce moisture.

  2. Rolling: Leaves are rolled to break cell walls and release enzymes.

  3. Oxidation: Rolled leaves are exposed to air, allowing full oxidation, which darkens the leaves and develops flavor.

  4. Drying: Leaves are dried to halt oxidation and preserve them for storage.

There are two main processing methods:

  • Orthodox Method: Leaves are carefully rolled and oxidized to preserve their shape and nuanced flavors.

  • CTC (Cut, Tear, Curl) Method: Leaves are chopped into small pieces, which are often used for tea bags and produce a stronger brew.

Black Tea Varieties

Black tea encompasses a wide range of flavors and characteristics, largely influenced by where it is grown and processed. Here is a breakdown of some of the most notable black tea types, organized by region for clarity and engagement.

Chinese Black Teas

Tea Name

Flavor Profile & Notes

Congu

Slightly sweet, brisk yet rich; often used as a base for kombucha tea

Keemum Mao Fang

Aromatic with notes of pine, cocoa, and marshmallow; vibrant and historically revered

Lapsang Souchong

Signature smoky flavor and aroma, traditionally smoked over pine needles; pairs well with savory foods

Indian Black Teas

Tea Name

Flavor Profile & Notes

Assam

Bold, malty, and dramatic; rivals coffee in strength; great for blending and multiple steepings

Darjeeling

Smooth, bright, muscatel overtones, slightly floral; leaves a subtle, lingering astringency

Sri Lankan Black Teas

Tea Name

Flavor Profile & Notes

Ceylon

Varies by altitude: light golden with a feathery finish or full-bodied with deep mahogany color; considered one of the world’s finest black teas

Summary Table: Black Tea Varieties by Region

Region

Notable Teas

Key Flavor Characteristics

China

Congu, Keemum Mao Fang, Lapsang Souchong

Sweet, aromatic, smoky, vibrant, cocoa, pine, marshmallow

India

Assam, Darjeeling

Bold, malty, muscatel, floral, astringent

Sri Lanka

Ceylon

Light golden to full-bodied, round, feathery, deep mahogany, bold

Black tea health benefits

Black tea is rich in antioxidants and has been associated with several health benefits:

  • Contains polyphenols that may help protect against disease.

  • Provides a gentle energy boost and mental clarity due to caffeine and L-theanine.

  • May support heart health and aid digestion.

  • Has potential anti-inflammatory and immune-boosting properties.

Black tea caffeine content

Black tea generally contains more caffeine than green or white teas, but significantly less than coffee. The actual caffeine content in a cup of black tea can vary widely depending on several factors, including the type of tea, leaf size, brewing method, and steeping time.

Average Caffeine Content

  • Typical Range (per 8-oz cup): 40–70 mg.

  • Broader Range (per 8-oz cup): 23–110 mg.

  • Coffee (for comparison): About 95–200 mg per 8-oz cup.

Factors Influencing Caffeine Levels

  • Tea Variety: Chinese black teas often have caffeine levels similar to green teas, while larger-leaf Indian black teas may have slightly higher caffeine content.

  • Leaf Size: Smaller leaves (such as those in tea bags) release caffeine more quickly than whole leaves.

  • Brewing Time & Temperature: Longer steeping times and hotter water extract more caffeine. The caffeine content increases with longer steeping and lessens with each re-steep.

  • Processing Method: The oxidation process impacts caffeine, but plant genetics and growing conditions play a larger role.

  • Other Factors: The age of the leaves, time of harvest, and even the altitude where tea is grown can affect caffeine content.

Factor

Effect on Caffeine Content

Tea variety

Indian black teas often have higher levels of caffeine.

Leaf size

Smaller leaves = more caffeine extracted.

Steeping time

Longer = more caffeine.

Water temperature

Hotter = more caffeine.

Re-steeping

Less caffeine with each subsequent brew.

Processing

Full oxidation (black tea) = robust flavor, but caffeine varies mainly by plant and leaf age.

How to prepare black tea

Black tea is best prepared at a water temperature of 206° F, with a steep time of about 3-5 minutes, to get the maximum amount of flavor from the leaf. Unlike most other tea types, black teas fare well when steeped with extremely hot water. The only exception to this rule is with Darjeelings, which are more delicate and should be steeped at a lower temperature of 180°F for no longer than 3 minutes to avoid bitterness. Black teas can be re-steeped multiple times, although the flavor will decrease with each steeping. For optimum results, it is suggested that you use about 1 tsp per 8-oz cup.

Recommendations

Whether you are new to black teas or just looking for something unique and adventurous to satiate your palate, we have a wonderful selection of teas and blends to try. Here are some of our favorites:

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